Motor Losing Steps or Position Error: Diagnosing Stepper and Servo Drift

Name: LUNA Industrial Automation
Address: 1599 Fengpu Avenue, Fengxian District, Shanghai, Shanghai, 201400, CN
Telephone: +86 189 1715 6222
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Question

Accepted Answer

A axis that gradually drifts out of position or a stepper that loses steps is usually torque margin, acceleration, or resonance — not a dead motor. How to tell mechanical from electrical from tuning. Full symptom, root-cause and fix guide: https://www.lunab2b.com/blog/stepper-servo-losing-steps-position-error